Windows remains functional without activation, but you'll be locked out of personalization and other non-essential features until it's addressed.

Your Windows 10 product key may be necessary to unlock all features -- but it's not easy to find. Here's where to look for the product key (even if it's lost).

Learn how to check the Windows activation status if Windows 11/10 OS via Windows Settings. You can activate Windows or change product key if needed.

Different ways to find your Digital License or Product Key in Windows 11/10. Retrieve Physical key or Digital license linked to Microsoft Account.

Product key and activation with Windows 10 free upgrade: When you upgrade your PC to Windows 10 from Windows 8 or 7, your licence will be tied to the hardware upgrade, not to the Microsoft account.

The very first thing that you need to do when trying to fix activation error code 0xc004f063 is to run the automated Windows Activation Troubleshooter.

Understanding Windows 10 activation Depending on how you get Windows 10, in some cases you're not supposed to need to type in a product key. If you were running a legitimate copy of Windows 7 or 8 ...

In this Windows 10 guide, you'll learn five ways to bring up the Windows activation tool to change the product key on your computer.